Portable computer



FIG. 1 is a top front and left side perspective view of a portable computer showing my new design;

FIG. 2 is a top front and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top front and right side perspective view thereof in an operating position; and,

FIG. 7 is a right side elevational view thereof in an operating position.

FIGS. 3-5 and 7 are drawn on an enlarged scale. 

The ornamental design for a portable computer, as shown and described. 